1997 Fermat Problem 10

On a cube, two points are said to be diametrically opposite if the line containing the two points also contains the centre of the cube. The diagram below shows a pattern which could be folded into a cube. Which point would be diametrically opposite to point P?

\textbf{(A)} Q \textbf{(B)} R \textbf{(C)} S \textbf{(D)} T \textbf{(E)} U

If there are no answer choices shown, enter a numerical answer.

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